EPSON Stylus
COLOR
1520
Rev. A
2-22
2.3.2.3 CR Motor Driver Circuits
The CR motor driver IC SLA7043M (IC15) sends motor phase data using the serial data (XCRCLK,
XCRSTB, CRASERI, CRBSERI) and voltage reference data (CRV) from the gate array E05B34 to the
driver to control the phase current in the driver. The data output from the phase A and phase B
(CRASERI, CRBSERI) are transferred synchronizing with the clock signal (XCRCLK). Then the data is
read at the driver IC by the strobe signal (XCRSTB). This sequence enables the micro step with a
minimum of 0.026 mm pulse driven at 2W1-2 phase excitation. The hold signal (CRHLD) also drives 2
phases to place the CR to the home position and to the cartridge change position. The Figure 2-22 shows
the CR motor driver circuit block diagram.
GA
E05B34
(IC5)
PF Motor Drive IC
SLA7043M
(IC17)
B
A
PF Motor
REFA
REFB
3
14
80
101
102
CRV
CR A
CR_A
CR B
CR_B
A
B
11
18
5
16
2
+5V
CLKA
CLKB
STBA
STBB
13
XCRCLK
81
XCRSTB
DATAA
DATAB
8
1
CRCOM
+42V
6
17
From CRV0
to CRV6
CRASERI
CRBSERI
Figure 2-22. CR Motor Block Diagram
Summary of Contents for 1520 - Stylus Color Inkjet Printer
Page 138: ...Maintenance Rev A 6 5 8 9 10 10 10 10 10 10 10 10 Figure 6 2 Lubrication Points 2 ...
Page 146: ...Appendix Rev A A 7 A 2 Circuit Diagrams Figure A A 2 C211 MAIN B Board Circuit Diagram 1 2 ...
Page 147: ...EPSON Stylus COLOR 1520 Rev A A 8 ...
Page 148: ...Appendix Rev A A 9 Figure A A 3 C211 MAIN B Board Circuit Diagram 2 2 ...
Page 149: ...EPSON Stylus COLOR 1520 Rev A A 10 ...
Page 152: ...Appendix Rev A A 13 A 3 Component Layout Figure A A 6 C211 MAIN B Board Component Layout ...
Page 153: ...EPSON Stylus COLOR 1520 Rev A A 14 Figure A A 7 C172 PSB Board Component Layout ...
Page 154: ...Appendix Rev A A 15 Figure A A 8 C172 PSE Board Component Layout ...
Page 156: ...Appendix Rev A A 17 Figure A A 10 Stylus COLOR 1520 Exploded Diagram 2 ...
Page 157: ...EPSON Stylus COLOR 1520 Rev A A 18 Figure A A 11 Stylus Color 1520 Exploded Diagram 3 ...
Page 165: ...EPSON SEIKO EPSON CORPORATION ...
